Trotula's contemporary Hildegarde of Bingen also wrote on women's medical matters.
One source of female medical advice was known as Secreta mulierum, "Of the Secrets of Women." Dating to the late 13th century or early 14th century, it was attributed to Albertus Magnus, but consensus says it was more likely a student or follower.
The Secreta was very popular, blending theories originally recorded by Hippocrates, Galen, and Aristiotle. These theories were more philosophical than medical. Besides discussing conception, for example, it goes in depth on how the alignment of planets and constellations influence the fetus during gestation.
It was translated into many languages over the next few centuries, and about 80 manuscripts still exist. Its apparent popularity did not save it from being placed on the Roman Catholic Index of Prohibited Books in 1605 because of its (let's say) "uncomfortable" topics.
Its take on conception is that the seed of the father interacts with the blood of menses, which is excess nutrition from the mother, expelled once each month. That "food" feeds the seed of the father during gestation, which is why menses stops: the father's seed is using it to grow the fetus. It also states that a woman on her period is dangerous and men should keep away from her. When menses stops with age, it builds up inside her and evil humors escape through her eyes and can harm others.
The Chapters of the Secreta are:- On the Generation of the Embryo
- On the Formation of the Fetus
- Concerning the Influence of the Planets
- On the Generation of Imperfect Animals
- On the Exit of the Fetus From the Uterus
- Concerning Monsters in Nature
- On the Signs of Conception
- On the Signs of Whether a Male or Female Is In the Uterus
- On the Signs of Corruption of Virginity
- On the Signs of Chastity
- Concerning a Defect of the Womb
- Concerning Impediments to Conception
- On the Generation of the Sperm